Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e050f96a22493eb…

MALICIOUS

PDF

72.1 KB Created: 2020-11-22 04:38:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 85ca30ae1fecf216410217355f541e0b SHA-1: 136e1a620ef2dbadf6b41a0a659c36214cb36134 SHA-256: 3e050f96a22493eb53d0a6420e2e7da638b2c8f1638aff717d94e1e542b687e5
242 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains heuristics indicating it is a malicious redirector and a payment redirection lure, aiming to trick users into clicking a link. The ML classifier strongly supports maliciousness. The embedded URL, https://gettraff.ru/aws?utm_term=quarterly+report+excel+format, is identified as a malicious redirector, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the PDF structure and heuristics point to a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gettraff.ru/aws?utm_term=quarterly+report+excel+format In PDF document text
    • https://gigijelu.weebly.com/uploads/1/3/4/8/134850334/depujubudizom-kevamuxin.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/pefidenisivolel.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/5686684.pdfIn PDF document text
    • https://lorovojiwu.weebly.com/uploads/1/3/4/3/134318747/butol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387718/normal_5fb9b4718eeb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410211/normal_5fa91eaa8ed0f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rimepusox/lozeve.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/60057314418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1fc0240-5db4-4e27-a20b-ccbdec8485b7/91271308126.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a8526cf-3fab-4cf6-8d18-e7bef4cf6469/wabubuweg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05a0368d-28f1-415c-bc5d-5de715c84449/tasegofafobasilabofixeti.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/lejozazomejewunofenagigo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE68 5212 bytes
SHA-256: a78b1881c36bf24d2dc05f5bc2c22c4bfffda148f4a0e2bcc54fc5eba93a1454
font_01_sfnt_off0000f021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF021 10436 bytes
SHA-256: 3015b2e8809d853563b5dfd1b0277abfc40150d1bdef1bff7fd264e74484d5ee

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